Astro Pneumatic APT4330 Shockless Air Hammer

Extreme Power Low vibration Shockless 3-3/4" action stroke Unit provides lowest vibration and most powerful hammer among compatible designs Composite ergonomic grip handle for the user's comfort Impact parts are made of heat-treated alloy steel to ensure tool durability Optional Quick Change Retainer for simple accessory changes Includes blow molded case for easy storage and transport Unit design covered by five different patents Chisel Shank Opening: 0.401"(10.2mm) / 0.410"(10.4mm) Bore Diameter: 3/4" (19mm) Stroke Length: 3-3/4" (94mm) Blow Per Minute: 2100 BPM Average Air Consumption: 7.1 CFM Net Weight: 4.1lbs (1.88kgs) Minimum Hose Size: 3/8" (10mm) Vibration: <6.5m/s2 Sound Pressure: 102.5dBA Overall Length: 29